DRAGON Minutes 13/12/04

Present: JDA, DH, DG, JP, AO, GR, WH, DO, MT, CR (recorder)

1. DRAGON 'Christmas festivities' will be held on Jan 4th (closer to Epiphany!!)

2. DRAGON clean up
	- DO wants DRAGON area cleaned up as there is a lot of old 'junk' lying around 
	that has been there since commissioning, some of it blocking access to work
	areas. This equipment needs to be inspected and removed to a suitable storage 
	site, to be determined.

3. An elastic detector after RFQ
	- JC and CR had discussed with Keerthi the possibility of installing an elastic
	detector and foil after the RFQ. The purpose of this would be a quick method of 
	determining whether or not a beam of certain A/Q was in fact a high mass high 
	charge beam, or a singly charged molecule. The recent case of FH+ and 40Ca++ 
	was an example of the problem we are trying to solve. A thin (perhaps 5 ug/cm**2 
	Carbon or Carbon with a Gold flash) foil would be placed somewhere near the stripper
	(or perhaps use a stripper position itself) and elastics would be detected by a 
	collimated surface barrier detector at a fixed angle. With a thin enough foil,
	40Ca++ could be separated kinematically from 20Ne+ or FH+. This would save the time 
	needed to do a full magnet scan. In the new year CR will make some simulations for
	this.   

4. GEANT
	- Lothar's simulations have revealed a possible problem with one of the histograms
	for gamma-rays. In this histogram no cascades were seen, although the cascades are
	being simulated, as can be seen in the ntuples. Some debugging will need to be done
	and CR will undertake this ASAP.

5. Papers
	- What papers will the DRAGON group be working on this coming new year? 
	A BGO paper is a possibility, based on the extension of DG's work.
	A 12C studies paper is another possibility: LB
	20Ne(p,g): we disagree with literature (Goerres) so a publication seems
	to be required. We also disagree with some 21Ne(p,g) published data.

6. Alternate production
	- Today (Tuesday 13th), a cold run will be attempted where 11C will be made in 
	the sample bottle, left to decay, then manually taken to the ion source and 
	hooked up as a prelude to a 'hot run' at a later date.