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Wednesday, May 29, 2013

Linac Guts

Siemens Primus

Just a couple of shots with the cover off. I love these, I think I need to brush up my photography skills, or keep the Nikon camera with me. This is an older machine and Siemens has exited the radiotherapy business so you won't see them around much longer. Had to replace a serial cable.


Monday, May 20, 2013

Sunday, May 19, 2013

Music uploads

I am going to upload some music clips, mostly of courses I'm working on as well as little music clips demoing gear and ideas for songs I have.

There are many sites I could upload this to. One of the most popular sites to upload to is Soundcloud.
I have an account at David Roeseners Sound Cloud

I also noticed tonight that Tumblr blogs easily allow music integration, so here is my tumblr blog.
davidroesener.tumblr.com

Wednesday, May 15, 2013

MLC Leaf width and plans

http://www.aapm.org/meetings/amos2/pdf/59-14909-99229-745.pdf

Quick summary of findings

Surprisingly, we noticed no difference in TV coverage and sparing of OARs. Furthermore, the isodose distributions and DVHs for the RPC and TG-119 phantoms show no major dosimetric gains for the smaller MLC widths, the cord for the RPC phantom received lower doses with the 1cm MLC system (our benchmark reference), for the same TV coverage across the systems. For the clinical cases, all systems gave comparable TV coverage and sparing of the OARs, with the Primus MLC system again, to provide slightly better conformity (lower CI). This better dose conformity is the reason that the dose fall-off within the "Ring" structure is higher, for the Primus system.

Conclusions:
This study is the first that comprehensively compares the majority of today’s MLC systems and has shown no significant indication that smaller MLC widths can lead to optimal plans, when multi-field IMRT techniques are used for planning.

3 day monk

I love this post and many others from Leo Babauta
http://zenhabits.net/3-day-monk/

ACR related

For later review
http://www.acr.org/Quality-Safety/Appropriateness-Criteria/Oncology
Another physicist/musician blog.

Looking forward to hearing some of his music, his early composition work looks promising. I think he has inspired me to start working on recording some compositions of my own. I do this off and on but haven't released anything for public consumption yet.

markstuartramsay.blogspot.co.uk

Sunday, May 12, 2013

Neoclassical Guitar

Back in the 80's i had one of Dave Celentanos books, for neoclassical guitar. He has a great youtube video where he plays Pachabel Canon.

http://www.davecelentano.com/wp-content/uploads/2010/11/Pachelbels-Canon-taps-part-1.pdf

Wednesday, May 8, 2013

Proton center tour@IU

 

This all looks good, weekend is pretty booked up so far.

 

Particle Beam Therapy Symposium

Symposium
$10
ticket required
Saturday, August 3 • 8:00am - 3:45pm
Room 103, Indiana Convention Center

Tour
$5
separate ticket required; limited to the first 150 registrants due to limited space
Saturday, August 3 • 4:00pm - 9:00pm
(inclusive of bus ride to Indiana University Health Proton Therapy Center, Bloomington)
Depart from Indiana Convention Center
Moderators: Indra Das and Lei Dong
Schedule
8:00am - 8:30amAn Overview of Proton Beam Therapy: Clinical PerspectiveHerman Suit: Massachusetts General Hospital
8:30am - 10:00amParticle Beam Technology and Delivery
This session will focus on the pros and cons of different methods of beam production; cyclotron, synchrotron, synchrocyclotron and newer devices in the context of technology, beam energy, treatment delivery options, reliability, and throughput. It will focus on science with big picture and a neutral view.
Moderator: Jay Flantz
Speakers:
Jay Flanz: Synchrotron
Vladimir Derenchuk: Cyclotron
Rock Mackie: unconventional acceleration (laser, dielectric etc)
10:00am - 10:15amBreak
10:15am - 12:00pmProton Center Specific Configuration and Clinical Implementations
Machine type, delivery system, patient load, morning QA, monthly QA, patient QA, calibration protocol and innovative approaches
Moderators: Ron Zhu and Chee-Wai Cheng
MGH: Hsiao-Ming Lu
Loma Linda: Baldev Patyal
IUHPTC: Chee-Wai Cheng
MD Anderson: Narayan Sahoo
University of Florida: Roelf Slopsema
ProCure: Niek Schreuder
University of Pennsylvania: James McDonough
Washington University: Eric Klein
Scripps: Anthony Mascia
12:00pm - 12:30pmBoxed Lunch Pick Up
12:30pm - 2:15pmVendor-Specific Technology and Beam Delivery Techniques
Vendors provide 15-minute presentations with Q&A during lunch.
Moderators:  Indra Das and Lei Dong
IBA: Yves Jongen
Varian: Jan Timmer
Hitachi: Masumi Umezawa
Mevion: Lionel Bouchet
ProNova: Joe Matteo
Sumitomo: Yukio Kumata
2:15pm - 3:45pmTreatment Planning, Outcome, and Economics of Proton Therapy
Proton-specific treatment planning, plan evaluation, relative biological effectiveness, outcome, work flow, and reimbursement
Moderator:  Radhe Mohan
Treatment planning: Tony Lomax
RBE, Neutron, Outcome: Harald Paganetti
Economics: Peter Johnstone
4:00pm - 5:30pmTravel to Indiana University Health Proton Therapy Center, Bloomington
5:30pm - 8:00pmTours and Dinner
8:00pm - 9:30pmReturn to Indiana Convention Center